Improvement in feed-water heaters



UNITED STATES nPiLiTnlxTT OFFICE.

EDWARD HUBER, OF MARION, OHIO.

IMPROVEMENT IN FEED-WATER HEATERS.

Specification forming part of Letters Patent No. 2105536, dated December3,1878; application filed August l, 1878.

To all whom it may concern.'

Be it known that I, EDWARD HUBER, of the city and county ot' Marion, andState of Ohio, have invented a new-and Improved Feed- Water Heater; andI do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, forming part otl this speciiication, in which- Figure 1 is alongitudinal section through the line w x of Fig. 2. Fig. 2 is atransverse section through line y y ot' Fig. 1.

My invention has reference to an improved feed-water heater; and itconsists in the peculiar construction and arrangement of acircularjaeket, arranged about the smoke-chamber of the boiler, having asupply-pipe and a discharge-pipe leading to the boiler, so that thewater, in passing through said jacket to the boiler, is not only heatedbefore being delivered into the boiler, but also serves to prevent thesmoke-chamber from being burned ont, as hereinafter more fullydescribed.

In the drawing, A represents a boiler, having an internal ue, B, thefront portion of which is fashioned into a tire-box with grate, a, andbridge -wall composed of two metal plates, b b.

C is the smoke chamber, communicating with the rear of the lue B, anddischarging its contents through the pipe D. Around this smoke-chamber,either upon the outside, as shown, or upon the inside, is arranged thecircular water-jacket E. This jacket receives its supplyr through apipe, c, in the side, and discharges its water, as fast as it becomesheated, into the boiler through the pipe d, which leads from top of thejacket, where the water is the hottest and free from sediment.

In carrying the steam from the boiler to the A point of utilization apipe, c, from the steamdome is extended down through a tube in thesteam-space, and thence through the crownsheet into the iiue between thetwo plates b b' ot' the bridge-wall, and thence out at the side of theboiler to the cylinder. This mode ot' conducting the steam, it will beseen, causes it to be superheated.

To prevent the back end, F, ot' the boiler from burning out, it may bemade hollow, as shown, and lled with ashes; or it may be constructed oflire-brick.

Gr is a removable door at the bottom of the smoke-chamber, for clearingout the deposits of ashes and soot in the same.

I a-m aware that it is not broadly new to arrange a water-jacket aboutthe smoke-chainber of a steam-boiler inside of the outer shell to heatthe feed-water as it passes through said jacket, and I therefore limitmy invention to the peculiar construction and arrangement of the jacketformed by a circular strip ot' metal bolted at its edges to the outsidesur face of the extended shell of the boiler which forms thesmoke-chamber, and swelled or bent up in the middle to receive thewater.

Having thus described my invention, what I claim as new is-,

The combination, with the boiler A, of the circular water-jacket E,consisting of a strip of metal bolted at its edges to the outside ot'that portion ofthe shell of the boiler which forms the smoke-chamber,and bent or swelled up in the center to receive the water, as described.

EDWARD HUBER.

Witnesses:

B. F. STAHL, S. A. COURT.

